Display screen or a portion thereof with graphical user interface



Reproduction 3.1 is a front view for a display screen or a portion thereof with graphical user interface. The outermost broken line rectangle in the reproduction showing the display screen or a portion thereof is for the purpose of illustrating environment and forms no part of the claimed design. The remaining broken lines in the reproduction show graphical elements that forms no part of the claimed design. 

CLAIM The ornamental design for a display screen or a portion thereof with graphical user interface, as shown and described. 